CN207406487U - A kind of vacuum pump for Chemical Manufacture - Google Patents
A kind of vacuum pump for Chemical Manufacture Download PDFInfo
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- CN207406487U CN207406487U CN201721385363.7U CN201721385363U CN207406487U CN 207406487 U CN207406487 U CN 207406487U CN 201721385363 U CN201721385363 U CN 201721385363U CN 207406487 U CN207406487 U CN 207406487U
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- pump housing
- magnetic force
- motor
- screw rod
- heat exchanger
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Abstract
The utility model belongs to pump apparatus technical field, more particularly to a kind of vacuum pump for Chemical Manufacture, including the pump housing and motor, two screw rods are provided in the pump housing, respectively driving screw rod and driven screw, two screw rods are arranged in parallel, the end of two screw rods is mounted on gear, the output shaft of motor is connected by shaft coupling with driving screw rod, driven screw is engaged with driving screw rod, further include heat exchanger and surge tank, the pump housing, motor, heat exchanger and surge tank are fixedly mounted in rack, the medium for needing to pump is followed by the pump housing, enter surge tank after heat exchanger.The pump housing, motor, surge tank and heat exchanger are integrated into a complete device that can integrally sell by the utility model, the utility model is made to be known as a kind of vaccum pump unit for being exclusively used in meeting Chemical Manufacture, it not only can effectively shorten the pump housing, surge tank, the connection of heat exchanger and valve selection time, and be readily transported and store.
Description
Technical field
The utility model belongs to Compressor Technology field more particularly to a kind of vacuum pump for Chemical Manufacture.
Background technology
Vacuum pump is one kind widely used device in Chemical Manufacture, however existing vacuum pump is there are some drawbacks,
It is difficult to the actual demand for meeting Chemical Manufacture：
1st, in the prior art, the structure of vacuum pump usually only includes the pump housing and motor two parts, and during installation, user needs root
According to use demand selection and the matched corollary equipment of vacuum pump.In chemical process, vacuum pump is usually mating with surge tank
It uses, in use, user wishes surge tank, the pump housing and motor being integrated into an equipment in order to install and transport, but it is existing
There is no such a equipment in technology.
2nd, the vacuum pump used in Chemical Manufacture is mostly Twin-screw vacuum pump, and in this vacuum pump, two screw rods are put down
Row arrangement, motor driving driving screw rod rotation, is engaged after driving screw rod rotation by gear driving pair drive with driving screw rod
Driven screw rotates.In the prior art, realized and sealed by mechanical sealing member between driving screw rod and pump housing shell, this sealing
Form belongs to dynamic sealing, and seal failure is inevitable, once and seal failure will cause medium to reveal, can not only pollute ring
Border, it is also possible to be damaged to the body of worker.
The content of the invention
The utility model provides a kind of vacuum pump for Chemical Manufacture, to solve the problems, such as to propose in the prior art.
The technical issues of the utility model solves is realized using following technical scheme：The utility model provides one kind one
Kind for Chemical Manufacture vacuum pump, including the pump housing and motor, two screw rods are provided in the pump housing, be respectively driving screw rod and from
Dynamic screw rod, two screw rods are arranged in parallel, and the end of two screw rods is mounted on gear, and the output shaft of motor passes through shaft coupling and master
Dynamic screw rod connection, driven screw are engaged with driving screw rod, further include heat exchanger and surge tank, the pump housing, motor, heat exchanger and
Surge tank be fixedly mounted in rack, it is necessary to the medium pumped followed by after the pump housing, heat exchanger enter surge tank, and by
Medium general export outflow on surge tank, one end of the driving screw rod are fixed with magnetic force internal rotor, magnetic force internal rotor it is outer
Side is correspondingly arranged on magnetic force outer rotor, and magnetic force outer rotor is fixed on the output shaft of motor, the magnetic force internal rotor and magnetic force
Separation sleeve is provided between outer rotor, separation sleeve is sealedly connected on the shell of the pump housing, on magnetic force internal rotor and magnetic force outer rotor
It is both provided with permanent magnet, after electric motor starting, magnetic force outer rotor is acted on by magnetic coupling drives magnetic force internal rotor to rotate, so as to real
Now to the driving of driving screw rod, the opposite side opposite with motor side on the pump housing, the end of driving screw rod and driven screw
One group of rotating seal component is each provided between portion and pump housing shell, rotating seal component includes a lip-shaped sealed ring, a Y
Type sealing ring and a spacer ring, wherein lip-shaped sealed ring are located inside, and spacer ring is located between two sealing rings, and spacer ring uses brass
It is made, the end of driving screw rod and driven screw is additionally provided with end cap, and seal assembly is encapsulated in the shell of the pump housing by end cap.
The heat exchanger is shell-and-tube exchanger.The pump housing at least two, the medium on each pump housing
Entrance is connected in parallel on one with being provided with medium main entrance on supervisor, on supervisor, and the media outlet on each pump housing is connected to same
Platform heat exchanger.
The beneficial effects of the utility model are：
1st, the utility model by the pump housing, motor, surge tank and heat exchanger be integrated into one can integrally sell complete set
It is standby, the utility model is made to be known as a kind of vaccum pump unit for being exclusively used in meeting Chemical Manufacture, not only can effectively shorten the pump housing, buffering
Tank, the connection of heat exchanger and valve selection time, and be readily transported and store.
2nd, the connecting shaft mode between motor and the pump housing is optimized in the utility model, passes through magnetic force outer rotor and magnetic force
Magnetic coupling between internal rotor acts on forming contactless connecting shaft structure, by separation sleeve by pump housing shell with driving screw rod
The corresponding position in shaft end become enclosed construction, so as to thoroughly prevent dielectric leakage at motor and the connecting shaft of driving screw rod.
3rd, the utility model improves the sealing structure between driving screw rod and driven screw and pump housing shell, existing
It is mechanical seal structure to have used in technology, and the utility model is employed by a lip-shaped sealed ring, a Y types sealing
Circle and a spacer ring combine the seal assembly to be formed, experiments verify that sealing effect is very reliable, sealing structure uses the longevity
Life significantly improves.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the attachment structure schematic diagram of pump body and the pump housing and motor.
In figure：1- racks, 2- surge tanks, 3- heat exchangers, the 4- pump housings, 5- motors, 6- media main entrance, 7- media always go out
Mouthful, 8- end caps, 9- spacer rings, 10- lip-shaped sealed rings, 11- driving screw rods, 12- magnetic force internal rotors, 13- separation sleeves, outside 14- magnetic force
Rotor, 15- motors, 16- driven screws, 17- manifold, 18-Y type sealing rings.
Specific embodiment
The utility model is described further below in conjunction with attached drawing：
The present embodiment includes the pump housing 4 and motor 5, is provided with two screw rods in the pump housing 4, is respectively driving screw rod 11 and driven
Screw rod 16, two screw rods are arranged in parallel, and the end of two screw rods is mounted on gear 15, and the output shaft of motor 5 passes through shaft coupling
It is connected with driving screw rod 11, driven screw 16 is engaged with driving screw rod 11.It is above universal architecture of the prior art, herein not
It repeats again.
The utility model further includes heat exchanger 3 and surge tank 2, and the pump housing 4, motor 5, heat exchanger 3 and surge tank 2 are solid
Dingan County in the rack 1, it is necessary to the medium of pumping is followed by entering surge tank 2 after the pump housing 4, heat exchanger 3, and by surge tank
Medium general export 7 on 2 flows out.The pump housing 4, motor 5, surge tank 2 and heat exchanger 3 are integrated into one by the utility model can be whole
The complete device that body is sold, makes the utility model be known as a kind of vaccum pump unit for being exclusively used in meeting Chemical Manufacture, can not only have
Effect shortens the pump housing 4, surge tank 2, the connection of heat exchanger 3 and valve selection time, and is readily transported and stores.
One end of the driving screw rod 11 is fixed with magnetic force internal rotor 12, and the outside of magnetic force internal rotor 12 is correspondingly arranged on
Magnetic force outer rotor 14, magnetic force outer rotor 14 are fixed on the output shaft of motor 5, the magnetic force internal rotor 12 and magnetic force outer rotor
Separation sleeve 13 is provided between 14, separation sleeve 13 is sealedly connected on the shell of the pump housing 4, magnetic force internal rotor 12 and magnetic force outer rotor
Permanent magnet is both provided on 14, after motor 5 starts, magnetic force outer rotor 14 is acted on by magnetic coupling drives magnetic force internal rotor 12 to revolve
Turn, so as to fulfill the driving to driving screw rod 11.The utility model has carried out the connecting shaft mode between motor 5 and the pump housing 4 excellent
Change, act on forming contactless connecting shaft structure by the magnetic coupling between magnetic force outer rotor 14 and magnetic force internal rotor 12, pass through
Position corresponding with the shaft end of driving screw rod 11 on 4 shell of the pump housing is become enclosed construction by separation sleeve 13, so as to thoroughly prevent
Motor 5 and the dielectric leakage at the connecting shaft of driving screw rod 11.
The opposite side opposite with 5 side of motor on the pump housing 4, the end and pump of driving screw rod 11 and driven screw 16
One group of rotating seal component is each provided between body case, it is close that rotating seal component includes 10, Y types of a lip-shaped sealed ring
Seal 18 and a spacer ring 9, wherein lip-shaped sealed ring 10 are located inside, and spacer ring 9 is located between two sealing rings, and spacer ring 9 uses
Brass is made, and the end of driving screw rod 11 and driven screw 16 is additionally provided with end cap 8, and seal assembly is encapsulated in the pump housing 4 by end cap 8
Shell in.The utility model changes the sealing structure between driving screw rod 11 and driven screw 16 and 4 shell of the pump housing
Into what is used in the prior art is mechanical seal structure, and cost is higher, and the utility model is employed by a lip-type seal
10, y-type seal rings 18 and the seal assembly of the combination formation of spacer ring 9 are enclosed, experiments verify that sealing effect very may be used
It leans on, the service life of sealing structure significantly improves.
The heat exchanger 3 is shell-and-tube exchanger, this is the common heat transmission equipment of chemical field, uses such heat
Exchanger can further improve the utility model as a kind of specificity of special chemical equipment.
The pump housing 4 at least two, the medium inlet on each pump housing 4 are connected in parallel on one on supervisor 17, supervisor 17
On be provided with medium main entrance 6, the media outlet on each pump housing 4 is connected to same heat exchanger 3.More pump housings 4
Setting can start another pump housing 4 in time in a pump housing failure, ensure being carried out continuously for production.
Claims (3)
1. including the pump housing (4) and motor (5), two screw rods are provided in the pump housing (4) for a kind of vacuum pump for Chemical Manufacture,
Respectively driving screw rod (11) and driven screw (16), two screw rods are arranged in parallel, and the end of two screw rods is mounted on gear
(15), the output shaft of motor (5) is connected by shaft coupling with driving screw rod (11), and driven screw (16) is nibbled with driving screw rod (11)
It closes, it is characterised in that：Further include heat exchanger (3) and surge tank (2), the pump housing (4), motor (5), heat exchanger (3) and buffering
Tank (2) is fixedly mounted in rack (1), and, it is necessary to which the medium pumped is followed by the pump housing (4), heat exchanger (3), entrance is slow afterwards
Tank (2) is rushed, and is flowed out by the medium general export (7) on surge tank (2), one end of the driving screw rod (11) is fixed with magnetic force
Internal rotor (12) is correspondingly arranged on magnetic force outer rotor (14) on the outside of magnetic force internal rotor (12), and magnetic force outer rotor (14) is fixed on
On the output shaft of motor (5), separation sleeve (13) is provided between the magnetic force internal rotor (12) and magnetic force outer rotor (14), every
It is sealedly connected on the shell of the pump housing (4) from set (13), is both provided with forever on magnetic force internal rotor (12) and magnetic force outer rotor (14)
Magnet, after motor (5) starts, magnetic force outer rotor (14) is acted on by magnetic coupling drives magnetic force internal rotor (12) to rotate, so as to
Realize the driving to driving screw rod (11), the opposite side opposite with motor (5) side, driving screw rod on the pump housing (4)
(11) one group of rotating seal component, rotating seal component bag are each provided between the end of driven screw (16) and pump housing shell
A lip-shaped sealed ring (10), a y-type seal ring (18) and a spacer ring (9) are included, wherein lip-shaped sealed ring (10) is located at interior
Side, spacer ring (9) are located between two sealing rings, and spacer ring (9) is made of brass, driving screw rod (11) and driven screw (16)
End is additionally provided with end cap (8), and seal assembly is encapsulated in the shell of the pump housing (4) by end cap (8).
2. a kind of vacuum pump for Chemical Manufacture according to claim 1, it is characterised in that：The heat exchanger
(3) it is shell-and-tube exchanger.
3. a kind of vacuum pump for Chemical Manufacture according to claim 1, it is characterised in that：The pump housing (4) is extremely
Rare two, the medium inlet on each pump housing (4) is connected in parallel on one and always enters with being provided with medium on supervisor (17), on supervisor (17)
Mouthful (6), the media outlet on each pump housing (4) are connected to same heat exchanger (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721385363.7U CN207406487U (en) | 2017-10-25 | 2017-10-25 | A kind of vacuum pump for Chemical Manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721385363.7U CN207406487U (en) | 2017-10-25 | 2017-10-25 | A kind of vacuum pump for Chemical Manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207406487U true CN207406487U (en) | 2018-05-25 |
Family
ID=62408660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721385363.7U Active CN207406487U (en) | 2017-10-25 | 2017-10-25 | A kind of vacuum pump for Chemical Manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207406487U (en) |
-
2017
- 2017-10-25 CN CN201721385363.7U patent/CN207406487U/en active Active
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